# Pi Digits vs Orange Number Block

The clearest difference is in-app purchases: Pi Digits at none against Orange Number Block's 1. Pi Digits also leads on ads (none vs shown). Orange Number Block's advantage is update cadence (weekly vs monthly) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Orange Number Block sells 1 one-off in-app purchase. Pi Digits asks for nothing beyond the download.

Pi Digits ships an update monthly, Orange Number Block weekly. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Pi Digits | Orange Number Block |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pi-digits-memory-challenge/id6467522843/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free | — |
| Size | 11 MB | 123 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Slavka Polanova](https://appshunter.io/developer/1708764553) | [NURI YANG](https://appshunter.io/developer/1667210977) |

## What reviewers say

### Pi Digits

[App page](https://appshunter.io/ios/app/pi-digits-memory-challenge/id6467522843)

Test your ability to memorize and recall digits of Pi. Engage in fast-paced challenges to extend your streak and improve your number recall. Ideal for students, puzzle enthusiasts, or anyone seeking a quick mental workout.

**Highlights:** Memorize digits of Pi, Classic typing mode, Timed Blitz mode, Track best streaks, Quick brain workouts, Suitable for all levels

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


### Orange Number Block

[App page](https://appshunter.io/ios/app/orange-number-block/id6759307592)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Pi Digits free?

Pi Digits is free to download, with no in-app purchases.

### Is Orange Number Block free?

Orange Number Block is free to download, with in-app purchases available.

### Do Pi Digits or Orange Number Block have ads?

Orange Number Block shows ads; Pi Digits does not.

### Which is updated more often, Pi Digits or Orange Number Block?

Pi Digits ships an update monthly, and Orange Number Block weekly. Most recently, Pi Digits was updated on October 25, 2026 and Orange Number Block on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*